/* 全局样式 */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

h1, h2 {
    text-align: center;
    color: #4E0102;
}

h3 {
    text-align: center;
    color: #333;
}

#navigation {
    background-color: #333;
    padding: 10px;
    text-align: center;
}

#navigation ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
}

#navigation li {
    display: inline;
    margin: 0 15px;
}

#navigation a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

#navigation a:hover {
    text-decoration: underline;
}

.current {
    color: #FFD700;
}

.content {
    width: 80%;
    margin: 20px auto;
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

blockquote {
    font-style: italic;
    text-align: center;
    margin: 20px;
    color: #555;
}

footer {
    text-align: center;
    padding: 15px;
    background-color: #333;
    color: white;
    margin-top: 20px;
}

/* 大屏幕导航菜单 */
nav ul {
    display: flex;
    justify-content: space-around;
    list-style: none;
    padding: 0;
  }
  
  /* 小屏幕导航菜单 */
  @media (max-width: 768px) {
    nav ul {
      flex-direction: column;
      align-items: center;
    }
  }